How did you manage to get to the school on time_________you missed the school bus?
| A．when | B．if |
| C．once | D．because |
----What's your ____ towards working on the weekends?
----I am strongly against it.
| A．impression | B．attitude |
| C．courage | D．opinion |
The industry is to the national economy. It is expected to account for 38.4% of our country's GDP by 2015.
| A．valuable | B．vague | C．vital | D．valid |
----Helen, what did our headmaster say just now?
----Every boy and girl, as well as the teachers who ______ to lead the group, _______ asked to come to school before 9:00 tomorrow.
| A．is; is | B．are; are |
| C．are; is | D．is; are |
With the help of advanced technology, many new subway lines _______ in the past few years.
| A．built | B．have built |
| C．have been built | D．had been built |
Star Awards 2006 received many negative comments from the viewers, ______ highlighted the technical problems and lack of management in handling the ceremony.
| A．most of them | B．most of which |
| C．most of whom | D．most of that |